Complete a homestead declaration form. California offers homestead exemption laws to protect equity in a primary residence.How do I file a declared homestead? Under California law, a homeowner is entitled to the protection of a certain amount of equity in the home that is his or her principal residence (home). You will need land to grow your business. You may choose to lease, rent, or purchase land. A homestead exemption is when a state reduces the property taxes you have to pay on your home. You will need to complete Form 5000 prior to purchase to be exempt from sales tax. If you are a reseller Arizona requires you to fill out Form 5000A. California. Farm Ownership Loans offer up to 100 percent financing and are a valuable resource to help farmers and ranchers purchase or enlarge family farms.